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经营范围
发明名称
ABRASIVE MANUFACTURE
摘要
申请公布号
CA438539(A)
申请公布日期
1946.12.10
申请号
CAD438539
申请日期
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
RICHARD PAUL CARLTON
分类号
主分类号
代理机构
代理人
主权项
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